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Marine Biology

, Volume 108, Issue 1, pp 145–149 | Cite as

Green and blue fluorescing dinoflagellates in Bahamian waters

  • E. J. Carpenter
  • J. Chang
  • L. P. Shapiro
Article

Abstract

At three stations in Bahamas waters, in 1989, 15 to 30% of all the dinoflagellates >20µm diameter observed in near-surface waters fluoresced green under blue excitation light, 55 to 66% fluoresced red, and the remainder did not fluoresce at all. The abundance of these green-fluorescing dinoflagellates ranged from ca 5 to 10 cells l−1 at the study sites. Under UV excitation, however, the dinoflagellates had a blue to blue-green appearance. Almost all the blue-green fluorescing dinoflagellates appeared to be heterotrophic, except for one species,Phalacroma rapa Stein, which also contained red-fluorescing (under blue light) chlorophylla. The emission spectra from all species examined were of three basic types. Type 1 typically had two fluorescence emission peaks (ca 440 and ca 510 nm). Type 2 spectra possessed one sharp peak at 495 nm. Spectra belonging to Type 3 had a broad peak around 470 to 480 nm. The green fluorescence thus is likely caused by different substances in individual species. The attempt to reconstitute observed spectra with nicotinamide adenine dinucleotide (NADH) and riboflavin 5′-phosphate (FMN) solutions was unsuccessful.

Keywords

NADH Chlorophylla Dinucleotide Riboflavin Dinoflagellate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1991

Authors and Affiliations

  • E. J. Carpenter
    • 1
  • J. Chang
    • 1
  • L. P. Shapiro
    • 2
  1. 1.Marine Sciences Research CenterState University of New YorkStony BrookUSA
  2. 2.Bigelow Laboratory for Ocean SciencesWest Boothbay HarborMaineUSA

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